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Ship shafting adjusting method

An adjustment method and shafting technology, applied to ships and other directions, can solve problems such as quality impact, accumulation of subtle errors, and ship construction errors, and achieve the effects of improving efficiency, reducing costs, and improving data accuracy

Inactive Publication Date: 2020-04-28
YIU LIAN DOCKYARDS SHEKOU LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the many processes involved, the accumulation of subtle errors caused by improper use of measurement methods will cause greater errors in the entire shipbuilding, thereby seriously affecting the quality

Method used

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Embodiment 1

[0024] Such as Figure 1-3 As shown, in the embodiment of the present invention, the ship is a double-shaft system, and the shaft system is composed of a propeller shaft (stern shaft), a propeller (with a fixed draft tube), a hydraulic coupling, a reduction box, and the like. The center of the propeller disk is located at FR6+250mm, 2850mm away from the hull baseline and above its baseline; the output flange end of the gearbox is at the FR42+1144.8 rib position, 3627.6mm away from the hull baseline. The total length of the two-point shafting is 29.705m, the inclination angle of the shafting center line to the hull baseline is 1.5°, and the two axes are symmetrically arranged at a distance of 8750mm from the midship line.

[0025] Step 1. Determine the theoretical centerline of the shafting system

[0026] Firstly, the steel wire drawing method is used on the left and starboard sides to find out the bow and stern points that determine the theoretical center line of the shaftin...

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Abstract

The invention provides a ship shafting adjusting method. The method comprises the following steps: 1, determining a theoretical shafting center line, and finding out bow and stern points for determining the theoretical shafting center line on a left board and a right board by adopting a steel wire drawing method; 2, measuring a stern target point A in a shafting line, and measuring the stern target point A on the left and right sides of an FR-1 rib position and a plumb line of a hull plate by taking a hull sub-baseline as a reference; 3, measuring a shafting midline bow reference point B, andmeasuring the shafting midline bow reference point B at the measurement mark point of the ship body baseline surface. The method has the beneficial effects that in the whole shipbuilding process, thedata accuracy of each link can be effectively improved, so that the shipbuilding process is improved, the efficiency is improved, the cost is reduced, and meanwhile, the shipbuilding quality is ensured.

Description

technical field [0001] The invention relates to the technical field of offshore drilling platforms, in particular to a method for adjusting the shafting of a ship. Background technique [0002] The shafting stern tube measurement is a key link in the shafting installation process. By measuring a series of data before and after epoxy pouring, the slope change curve of the stern tube is calculated to ensure the reliable operation of the ship shafting. Since the construction of the first container ship, this operation requires the assistance of the manufacturer Wärtsilä to assist in the measurement, which not only increases the cost of outsourcing, but also increases the production cycle, which affects the progress of the project. In order to enhance production schedule control and process management, the process group of the mechanical and electrical engineering area devoted itself to research and carried out independent measurement tests. Due to the many processes involved, ...

Claims

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Application Information

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IPC IPC(8): B63B75/00
Inventor 苏旗
Owner YIU LIAN DOCKYARDS SHEKOU LTD
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